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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_PRIVATE_AGGREGATION_PRIVATE_AGGREGATION_INTERNALS_HANDLER_IMPL_H_
#define CONTENT_BROWSER_PRIVATE_AGGREGATION_PRIVATE_AGGREGATION_INTERNALS_HANDLER_IMPL_H_
#include <optional>
#include "base/memory/raw_ptr.h"
#include "base/scoped_observation.h"
#include "content/browser/aggregation_service/aggregation_service.h"
#include "content/browser/aggregation_service/aggregation_service_observer.h"
#include "content/browser/private_aggregation/private_aggregation_internals.mojom.h"
#include "content/common/content_export.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace content {
class WebUI;
// Implements the mojo endpoint for the private aggregation internals WebUI
// which proxies calls to the `AggregationService` to get information about
// stored aggregatable report data. Also observes the manager in order to push
// events, e.g. reports being sent or dropped, to the internals WebUI. Owned by
// `PrivateAggregationInternalsUI`.
//
// NOTE: Today, Private Aggregation is the only API that uses report storage. If
// that changes, this implementation must be updated to filter out reports from
// other APIs.
class CONTENT_EXPORT PrivateAggregationInternalsHandlerImpl
: public private_aggregation_internals::mojom::Handler,
public AggregationServiceObserver {
public:
PrivateAggregationInternalsHandlerImpl(
WebUI* web_ui,
mojo::PendingRemote<private_aggregation_internals::mojom::Observer>,
mojo::PendingReceiver<private_aggregation_internals::mojom::Handler>);
PrivateAggregationInternalsHandlerImpl(
const PrivateAggregationInternalsHandlerImpl&) = delete;
PrivateAggregationInternalsHandlerImpl(
PrivateAggregationInternalsHandlerImpl&&) = delete;
PrivateAggregationInternalsHandlerImpl& operator=(
const PrivateAggregationInternalsHandlerImpl&) = delete;
PrivateAggregationInternalsHandlerImpl& operator=(
PrivateAggregationInternalsHandlerImpl&&) = delete;
~PrivateAggregationInternalsHandlerImpl() override;
// private_aggregation_internals::mojom::Handler:
void GetReports(
private_aggregation_internals::mojom::Handler::GetReportsCallback
callback) override;
void SendReports(
const std::vector<AggregationServiceStorage::RequestId>& ids,
private_aggregation_internals::mojom::Handler::SendReportsCallback
callback) override;
void ClearStorage(
private_aggregation_internals::mojom::Handler::ClearStorageCallback
callback) override;
private:
friend class PrivateAggregationInternalsHandlerImplTest;
// AggregationServiceObserver:
void OnRequestStorageModified() override;
void OnReportHandled(
const AggregatableReportRequest& request,
std::optional<AggregationServiceStorage::RequestId> id,
const std::optional<AggregatableReport>& report,
base::Time actual_report_time,
AggregationServiceObserver::ReportStatus result) override;
void OnObserverDisconnected();
raw_ptr<WebUI> web_ui_;
mojo::Remote<private_aggregation_internals::mojom::Observer> observer_;
mojo::Receiver<private_aggregation_internals::mojom::Handler> handler_;
// `AggregationService` is bound to the lifetime of the browser context,
// therefore outlives the observer.
base::ScopedObservation<AggregationService, AggregationServiceObserver>
aggregation_service_observer_{this};
};
} // namespace content
#endif // CONTENT_BROWSER_PRIVATE_AGGREGATION_PRIVATE_AGGREGATION_INTERNALS_HANDLER_IMPL_H_
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